Instructional module focusing on light. Discussion includes historical development of particle versus wave theories and the scientific studies leading to the understanding of light waves today. Site also includes an interactive practice...

Through illustrated diagrams and interactive practice examples, students explore the physics of sound in open-end air column musical instruments.

Through illustrated diagrams and interactive practice examples, students explore the physics of sound in closed-end air column musical instruments.

This hypertext physics course page illustrates and explains the Doppler effect. Users perform practice calculations for frequency shifts using the Doppler equation.